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the Q390A is the right choice
or differential air pressure in HVAC systems
Used With: T812 and TS812 Thermostats
Adaptor kit for V4043
R8222U1079/U ISD Product the Q390A is the rightGeneral Purpose Relays: This general purpose switching relay from Resideo has a 24 VAC coil and works with low voltage applications. The R8222 is available for millivolt, pilot duty, and power pole applications. These relays are suitable for refrigeration and air conditioning equipment, appliances, vending machines, and other applications requiring general purpose switching.
US$ 15.39
US$ 24.99
US$ 65.99
